CN104094205B

CN104094205B - Information display device

Info

Publication number: CN104094205B
Application number: CN201280069115.5A
Authority: CN
Inventors: 高原博司
Original assignee: Joled Inc
Current assignee: Japan Display Design And Development Contract Society
Priority date: 2012-02-08
Filing date: 2012-11-22
Publication date: 2017-03-08
Anticipated expiration: 2032-11-22
Also published as: JPWO2013118214A1; JP5796091B2; US9588601B2; US20140267191A1; WO2013118214A1; CN104094205A

Abstract

Information display device has EL display floater, and this EL display floater possesses：Rectangular viewing area is configured to based on the pixel of EL element；The source signal line of picture signal is provided to pixel；With the gate line providing the luminous selection/unselected signal controlling pixel.There are the polarization plates (32) making EL display floater incident illumination produce polarization, and EL display floater possesses coordinate measurement labelling (42), this coordinate measurement labelling (42) has the characteristic in the direction changing incident illumination.

Description

Information display device

Technical field

The present invention relates to following information display device, that is,：Be used organic material as luminescent material electroluminescent (with Down referred to as " EL ") element is configured in the display device of rectangular EL display device etc., forms coordinate inspection in viewing area Mark is known, and reads this coordinate measurement mark with input pen etc..

Background technology

Known have following technology, that is,：Comprise the two of encoded coordinate information by configuration on the printed mediums such as paper Dimension code, to specify the position of the image information being formed on this printed medium.

As the technology for input coordinate, have by resistor pressure formula or electrostatic capacitive or induction etc. Mode, be used as writing pencil of input pen etc. input tablet terminal on coordinate technology.Possess based on resistor pressure formula, In the case of electrostatic capacitive, induction etc. the device of tablet terminal, it is much to be applied in combination tablet terminal and liquid crystal The display units such as display, are configured to make the coordinate indicating range in tablet terminal corresponding with the display picture foundation of display unit Relation, if mobile handwriting pen in tablet terminal, light is marked on and moves in display picture correspondingly.

In addition, as the citation related to this application, such as known have patent documentation 1,2.

Citation

Patent documentation

Patent documentation 1：Japanese Unexamined Patent Publication 2006-085679 publication

Patent documentation 2：Japanese Unexamined Patent Publication 07-17304 publication

Content of the invention

The present invention is that have the information display device of display floater, this display floater have pixel be configured to rectangular Viewing area.Display floater possesses makes the incident polarization unit that polarization occurs, and possess change by polarization unit realize inclined The coordinate measurement labelling of state of shaking.

According to this structure, the light of coordinate measurement labelling can also be passed through by the detection of image acquisition unit using electronic pen Or the light after being reflected, thus, it is possible to easily specified coordinate position.

Brief description

Fig. 1 is an example representing the schematic construction of the pixel of EL display device and drive circuit in an embodiment The structure chart of son.

Fig. 2A is the explanatory diagram of the initial actuating of the pixel of EL display device in an embodiment.

Fig. 2 B is the explanatory diagram of the homing action of the pixel of EL display device in an embodiment.

Fig. 2 C is the explanatory diagram of the programming action of the pixel of EL display device in an embodiment.

Fig. 2 D is the explanatory diagram of the light-emission operation of the pixel of EL display device in an embodiment.

Fig. 3 is the sectional view of an example of the EL display floater representing the EL display device in an embodiment.

Fig. 4 is the sectional view of the other examples of EL display floater representing the EL display device in an embodiment.

Fig. 5 is the explanation of an example representing the information display device using the EL display device in an embodiment Figure.

Fig. 6 is the saying an of example representing the information display device of EL display device employing in an embodiment Bright figure.

Fig. 7 is the schematic diagram representing the basic structure of electronic pen and tablet terminal in an embodiment.

Fig. 8 is the explanatory diagram that descriptive information reads example.

Fig. 9 is the explanatory diagram being inputted with electronic pen.

Figure 10 is the explanatory diagram of the control method of LED and CCD.

Figure 11 is the other examples representing the information display device of EL display device employing in an embodiment Explanatory diagram.

Figure 12 is the explanatory diagram representing the state lighting control of installment state and LED to LED-baseplate etc..

Figure 13 is the saying of the other examples of the state lighting control representing the installment state of substrate to LED etc. and LED Bright figure.

Figure 14 is the saying of other examples representing the information display device using the EL display device in an embodiment Bright figure.

Figure 15 is the saying of other examples representing the information display device using the EL display device in an embodiment Bright figure.

Figure 16 is the saying of other examples representing the information display device using the EL display device in an embodiment Bright figure.

Figure 17 is the figure of the configuration example that denotation coordination detects labelling.

Figure 18 is the figure of the configuration example that denotation coordination detects labelling.

Figure 19 is the figure of the configuration example that denotation coordination detects labelling.

Figure 20 is the figure of the configuration example that denotation coordination detects labelling.

Figure 21 is the figure of the configuration example that denotation coordination detects labelling.

Figure 22 is the figure of the configuration example that denotation coordination detects labelling.

Figure 23 is the figure of the configuration example that denotation coordination detects labelling.

Figure 24 is the figure of the configuration example that denotation coordination detects labelling.

Figure 25 is the figure of the configuration example that denotation coordination detects labelling.

Figure 26 is the figure of the configuration example that denotation coordination detects labelling.

Figure 27 is the saying of other examples representing the information display device using the EL display device in an embodiment Bright figure.

Specific embodiment

Below, in conjunction with accompanying drawing, the information display device in one embodiment is explained.

Fig. 1 is an example representing the schematic construction of the pixel of EL display device and drive circuit in an embodiment The structure chart of son.In addition, only representing the major part of EL display device in FIG.

As shown in figure 1, EL display device is made up of with the circuit board being equipped with drive circuit EL display floater 1.EL shows Show that panel 1 is, in viewing area 2, multiple pixels with EL element are configured to rectangular structure.

First, the structure of pixel is explained.1 pixel 10 has following structure, that is,：The transistor 11d of switch Source terminal be connected to the drain terminal with transistor 11a for the driving of P-channel, the anode terminal of EL element 12 is connected to crystal The drain terminal of pipe 11d.Transistor 11b, 11c, 11e, 11f are provided in the transistor of other switches of pixel 10, in addition, Capacitor 13a, 13b, 13c, 13d, 13e are the capacitors of the conduction and cut-off for controlling transistor 11a～11f.

In addition, EL element 12 cathode terminal apply cathode voltage Vss, by EL display device anode electrode to crystal The source terminal of pipe 11a applies anode voltage Vdd, these anode voltages Vdd and cathode voltage Vss and is set to anode voltage The relation of Vdd ＞ cathode voltage Vss.

In addition, drive circuit has as the source electrode driver IC14 of source electrode drive circuit with as gate driver circuit Gate drivers IC15,16.Source electrode driver IC14 and gate drivers IC15,16 via gate line 17 (17a, 17b, 17c, 17d, 17e) and source signal line 18 and electrically connect with pixel 10.In addition, gate drivers IC15 is mounted on Flexible base plate (COF) 19 as circuit board, by this COF19, gate drivers IC16 is connected with EL display floater 1.

In FIG, in the gate line being supplied to the luminous selection/unselected signal controlling pixel 10, such as Fruit applies conducting voltage in gate line 17d (Gd), then transistor 11d conducting, and the glow current from transistor 11a is carried It is supplied to EL element 12, EL element 12 is lighted based on the size of glow current.The size of glow current is according to will be applied to source The signal of video signal of pole holding wire 18 by switch with transistor 11b and be applied to pixel 10 fixed.

That is, between the gate terminal and drain terminal of transistor 11a, the source terminal of transistor 11b and drain terminal It is connected, by conducting voltage is applied to gate line 17b (Gb), so that the gate terminal of transistor 11a and drain electrode end Between son short-circuit (connection).One terminal of capacitor 13b is connected on the gate terminal of transistor 11a, capacitor 13b's is another One terminal is connected with the drain terminal of transistor 11b.The source terminal of transistor 11c is believed with source electrode via transistor 11b Number line 18 connects, if the gate terminal of transistor 11c is applied with the conducting voltage of gate line 17c (Ge), transistor 11c turns on, according to the signal of video signal being supplied to source signal line 18, to pixel 10 applied voltage Vs.

In addition, a terminal of the capacitor 13a of pixel 10 is connected with the drain terminal of transistor 11b, another terminal It is connected with the anode electrode of EL display device, and be applied in anode voltage Vdd.

The drain terminal of transistor 11e is connected with the drain terminal of transistor 11b, the source terminal of transistor 11e and quilt The holding wire applying resetting voltage Va connects.By conducting voltage is applied to gate line 17a (Ga), thus transistor 11e Conducting, resetting voltage Va is applied to capacitor 13a.

Here, transistor 11c, 11e are P-channel, using LDD structure.That is, by multiple using being connected in series The structure of the grid of transistor, can realize the cut-off characteristicses of transistor 11c, 11e well.In addition to transistor 11c, 11e Transistor it is also preferred that using P-channel, adopting LDD structure, and as needed, by using multi-gate structure such that it is able to suppression Cut-off leakage current processed, realizes good contrast, biasing elimination action.

In addition, with regard to capacitor 13a, using the structure applying anode voltage Vdd, but be not limited thereto, also may be used To be connected with other arbitrary DC voltages.Similarly can be using applying in addition to anode voltage Vdd with regard to transistor 11a Any DC voltage structure.That is, phase can not also be applied to the source terminal of capacitor 13a and transistor 11a With voltage but apply different voltages.Such as or to the source terminal of transistor 11a apply anode voltage Vdd, Capacitor 13a is applied with the attachment structure of the voltage of DC voltage Vb (5 (V)).

In addition, making pixel 10 flash or digitally light with the numeral shown in realizing as PWM type of drive In the case of type of drive, predetermined magnitude of voltage is applied to pixel 10 by transistor 11b, according to the ash with signal of video signal Spend corresponding digit, make transistor 11d on or off, show by gray scale to carry out luminous drive control.In addition, controlling brilliant Body pipe 11d conduction and cut-off, produces the black display (non-display) of banding in viewing area 2, controls the electricity flowing through viewing area 2 Flow.

Then, the effect to capacitor 13c, 13d of being represented by dotted lines in FIG is explained.Capacitor 13c is formed at Between gate line 17b and transistor 11a, capacitor 13d is formed at the gate terminal of gate line 17d and transistor 11a Between son.This capacitor 13c, capacitor 13d etc. referred to as punctured capacitor, and by the voltage changing or has changed Voltage is referred to as breakdown voltage.

In FIG, when applying conducting voltage (VGL) to gate line 17b, transistor 11b is in the conduction state, will The signal of video signal being applied to source signal line 18 is applied to pixel 10.Then, if be applied to the voltage of gate line 17b from The change of conducting voltage VGL turns to blanking voltage VGH, then transistor 11b cut-off.Now, a terminal voltage of capacitor 13c is also from VGL Become and turn to VGH, thus be communicated to the gate terminal of transistor 11a based on the voltage of change.The voltage being communicated is to make crystal The direction that the gate terminal voltage of pipe 11a rises, and because transistor 11a is p channel transistor, therefore change in voltage is crystal Pipe 11a makes the direction flowing through the electric current minimizing of EL element 12 such that it is able to realize good black display.

So, the gate terminal voltage (electricity of capacitor 13e of driving transistor 11a is made via the electric capacity of capacitor 13c Position) change, such that it is able to carry out good black display.

In addition, when transistor 11d turns on, applying VGL2 voltage in gate line 17d, when transistor 11d cuts When only, apply VGH2 voltage in gate line 17d.When being biased elimination action, transistor 11d is in and cuts Only state, when so that EL element 12 is lighted, transistor 11d is in the conduction state.Therefore, when display starts, grid is believed Number line 17d produces the change of VGH2 voltage → VGL2 voltage.Therefore, the voltage of the gate terminal of transistor 11a is because puncturing electric capacity The effect of device 13d and reduce.If the voltage of the gate terminal of transistor 11a reduces, transistor 11a can make larger electricity Stream flows through EL element 12, shows such that it is able to carry out high brightness.

So, change via the gate terminal voltage that the electric capacity of capacitor 13d makes driving transistor 11a, thus The amplitude of the electric current flowing through EL element 12 can be increased, so that high brightness is shown and be possibly realized.

The electric capacity of capacitor 13c is preferably more than the 1/12 and less than 1/3 of the electric capacity of capacitor 13a or capacitor 13b. If the Capacity Ratio of capacitor 13c is too small, the change of the gate terminal voltage of transistor 11a, than can be excessive, eliminates away from biasing The difference of the ideal value of state can become big.In addition, if Capacity Ratio is excessive, then the change of the gate terminal voltage of transistor 11a Change can diminish, thus being not readily available effect.

In addition, the method as making the gate terminal voltage of driving transistor 11a change, it is not limited only to pass through Capacitor 13c directly makes it change.Such as it is also possible to indirectly make driving transistor 11a's by other capacitors Gate terminal voltage changes.

Fig. 2A～Fig. 2 D is the action specification figure of the pixel operation for the EL display device in an embodiment is described. In conjunction with Fig. 2A～Fig. 2 D, the action of lighting of pixel 10 is described in detail.Write action, the EL unit of signal of video signal to pixel The light-emission operation of part 12 is carried out with the order of Fig. 2A → Fig. 2 B → Fig. 2 C → Fig. 2 D.

Fig. 2A is the explanatory diagram of the initial actuating of the pixel of EL display device in an embodiment.Horizontal-drive signal (HD), after, implement initialization action.In FIG, conducting voltage is applied to gate line 17a, 17d, 17e, thus crystal Pipe 11d, 11e, 11f turn on.Blanking voltage is applied to gate line 17b, 17c, thus transistor 11b, 11c cut-off.From applying The holding wire having added resetting voltage Va provides resetting voltage Va to a terminal of capacitor 13a.

Biasing eliminates electric current And if applies through the raceway groove direction of transistor 11a, 11c, 11f from the current potential Vdd of source terminal Flow through transistor 11a to the DC voltage Vb of the electrode of the drain terminal of transistor 11f.In addition, the size of voltage is as follows Relation, that is,：Anode voltage Vdd ＞ DC voltage Vb, resetting voltage Va ＞ DC voltage Vb.

Eliminate electric current If due to flowing through biasing, the drain terminal current potential of transistor 11a reduces.In addition, passing through resetting voltage Va and flow through resetting current Ir, Va voltage is applied in the terminal of capacitor 13b.

Transistor 11a turns on, and only has biasing to eliminate electric current If in a period of very short and flows through.Electric current is eliminated by biasing If, at least drain terminal voltage of transistor 11a reduce than anode voltage Vdd, become movable state.

Fig. 2 B is the explanatory diagram of the homing action of the pixel of EL display device in an embodiment.In FIG, to grid Pole holding wire 17c applies conducting voltage, applies blanking voltage to gate line 17d.Transistor 11d cut-off and transistor 11c turns on.

Ended by transistor 11d and transistor 11c conducting, thus biasing elimination electric current If to flow to transistor 11a's Gate terminal.Eliminate electric current If with regard to biasing, be initially circulation than larger electric current.Gate terminal along with transistor 11a Current potential rise and close to cut-off state, the electric current of circulation reduces.Eventually become 0 (μ A) or the current value close to 0 (μ A).

By above action, transistor 11a becomes the state that biasing eliminates.Biasing eliminates voltage and is maintained at capacitor In 13b.One terminal of capacitor 13b is retained as resetting voltage Va.Another terminal (is connected to the grid of transistor 11a The terminal of terminal) keep biasing to eliminate voltage.

Fig. 2 C is the explanatory diagram of the programming action of the pixel of EL display device in an embodiment.In programming action In, apply blanking voltage in FIG gate line 17a, 17c, 17d, thus transistor 11e, 11c, 11d cut-off.To grid Pole holding wire 17b applies conducting voltage, thus transistor 11b conducting.

On the other hand, signal of video signal voltage Vs is applied to source signal line 18.Turned on by transistor 11b, signal of video signal Voltage Vs is applied in capacitor 13b.The terminal of capacitor 13b turns to signal of video signal voltage Vs from resetting voltage Va change.Therefore, Capacitor 13b keeps bias, based on signal of video signal voltage Vs+, the voltage eliminating voltage.

In addition, signal of video signal voltage Vs is the voltage on the basis of anode voltage Vdd.The voltage of anode voltage Vdd with The decline of cloth line voltage in panel and different in panel.Therefore, signal of video signal voltage Vs is also according to being applied to pixel Anode voltage Vdd and variable or change.

Fig. 2 D is the explanatory diagram of the light-emission operation of the pixel of EL display device in an embodiment.The programming of Fig. 2 C is moved After work, in FIG, blanking voltage is applied to gate line 17b, thus transistor 11b becomes cut-off state.From source electrode letter The cut-out of number line 18 separates pixel 10.Conducting voltage is applied to gate line 17d, thus transistor 11d conducting, from transistor The glow current Ie of 11a is provided to EL element 12.EL element 12 is lighted based on the glow current Ie being supplied to.

In addition, it is also possible to omit transistor 11f in Fig. 1, Fig. 2A～Fig. 2 D.In the dot structure not having transistor 11f In, in fig. 2 when transistor 11d turns on, biasing eliminates electric current And if flows through EL element 12.Although biasing eliminates electric current If flows through EL element 12 will make EL element 12 light, but flows through biasing and eliminate the time of electric current If in below 1 μ sec, therefore EL The time that element 12 lights is very short.Therefore, EL display device in the present embodiment (EL display floater) will not be sent out substantially The situation that raw contrast reduces.

Source electrode driver IC14 as source electrode drive circuit can not be and only possesses simple driver functions, acceptable Its built-in power circuit, buffer circuit (circuit such as including shift register), data transformation circuit, latch cicuit, instruction is made to translate Code device, shift circuit, address translation circuit, image storage etc..

Gate drivers IC16 can also be constituted shift register, exported and delay using p channel transistor and capacitor Rush circuit.By only being constituted with p channel transistor, it is possible to reduce used in operation, mask number is such that it is able to realize panel Cost degradation.

In addition, transistor 11a～11f can be by high temperature polysilicon, low temperature polycrystalline silicon, continuous grain crystal silicon, transparent amorphous Any one in the transistor that state oxide semiconductor, non-crystalline silicon, infrared ray RTA are formed.These transistors are due to being top-gated Structure, can reduce parasitic capacitance, make the gate electrode pattern of top-gated become light shield layer, thus being blocked from EL unit by light shield layer The light that part 12 projects, can reduce misoperation, the cut-off leakage current of transistor.

Cloth as both gate line 17 or source signal line 18 or gate line 17 and source signal line 18 Wire material, for reducing routing resistance and realize larger EL display floater consideration, is preferable to carry out adopting copper cloth Line or the operation of copper alloy wiring.

Fig. 3 is the sectional view of an example of the EL display floater representing the EL display device in an embodiment.As Shown in Fig. 3, configure sealing plate 30 in the rear side of EL display floater, and configure array base palte 31, Er Qie in display surface side The polarization plates 32 that the display surface configuration of array base palte 31 is made up of circular polarization film, circular polarization filter, circular polarizing disk etc..As this The constituent material of array base palte 31, it is possible to use there is the glass substrate of light transmission, silicon wafer, metal basal board, ceramic substrate, mould Tablet etc. or for improving good sapphire glass of thermal diffusivity etc..As the constituent material of sealing plate 30, using with array base Plate 31 identical material.In addition, in space between sealing plate 30 and array base palte 31, more fragile to humidity ratio in order to prevent The deterioration of EL material and be configured with desiccant (not shown).With sealing resin (not shown) to sealing plate 30 and array base palte 31 Periphery sealed.

In addition, surface of space between sealing plate 30 and array base palte 31 or sealing plate 30 etc. is configured with temperature Sensor (not shown), according to the output result of this temperature sensor, implements the Duty ratio control of EL display floater or lights rate Control etc..Further, in inspection panel, the action of gate driver circuit is adjusted based on the detection output of temperature sensor Speed.

Polarization plates 32 are passed through to attach 1/4 phase retardation film (1/4 wavelength plate) to constitute in linear polarization membrane, if with line relatively Property polarizing coating absorption axiss become 45 degree to attach 1/4 phase retardation film, then become right rotation circularly polarizing plate, if opposite linear polarization The absorption axiss of film become 135 degree (- 45 degree) to attach, then to become the circularly polarizing plate of anticlockwise.Phase retardation film side is made to become inner side simultaneously And left and right circularly polarizing plate is overlapping, then can block the external light reflection occurring in panel itself.In addition, polarization plates 32 remove circular polarization Beyond film, circular polarization filter, circular polarizing disk, can also be the polarizer carrying out elliptical polarization or linear polarization.Further, 1/ 4 wavelength plates are not limited to phase retardation film, can also be and crystallize, using crystal or Muscovitum etc., the element changing phase place.As phase place Difference film, it is possible to use the film that the Merlon of uniaxial extension, cyclic olefin polymer are constituted, the optical path difference of optimal wavelength 550nm (retardation) it is 120～150nm.Further, polarization plates 32 can also use and form aluminium film simultaneously on chip glass And here inserts fine groove to produce the polarization plates of polarization property.

First, thin-film transistor array base-plate side is explained.In figure 3, array base palte 31 inner surface formed by The colored filter (not shown) that red (R), green (G), blue (B) are constituted.In addition, colored filter is not limited to RGB, acceptable Form dark green (C), peony (M), the pixel of yellow (Y).Alternatively, it is also possible to form the pixel of white (W).Be fabricated to for 1 pixel carrying out colored display forms square shape by 3 pixels of RGB.Alternatively, it is also possible to make the picture of R, G, B Plain aperture opening ratio is different.By making aperture opening ratio different, the electric current density flowing through the EL element 12 of the RGB of each pixel can be made different, Thus enable that the degradation speed of the EL element 12 of RGB is consistent.

In EL display floater, as carrying out the colored method showing, in addition to colored filter used as discussed above, The EL layer sending blue light can also be formed, by the colour switching layer of R, G, B, the blue light sending is transformed to R, G, B light.

In addition, as shown in figure 1, each pixel being formed on array base palte 31 has multiple transistors 11, and in pixel Between be configured with gate line (not shown).In addition, photomask 33 is formed on transistor 11.Further, as needed, in crystalline substance The lower floor of body pipe 11, the lower floor/upper strata of gate driver circuit form photomask 33.Anode electrode 34 as pixel electrode and crystalline substance Body pipe 11 is electrically connected by connecting portion 35.As anode electrode 34, saturating using be made up of ITO, IGZO, IZO, Mg-Ag etc. Prescribed electrode.

Described photomask 33 is formed by metallic films such as chromium, and its thickness is more than 50nm and below 150nm.Photomask 33 Thickness is thin, then shaded effect is insufficient, and the thickness of photomask 33 is thick, then can occur concavo-convex, so that the transistor on upper strata 11 patterning becomes difficult.And, on colored filter, with covering transistor 11 or gate line and source signal The mode of line (not shown) forms the dielectric film 36 as interlayer dielectric, forms black matrix" (not also between colored filter Diagram).

In addition, being configured with dielectric film 36 for connecting the transistor 11 of array base palte 31 side and the anode of illuminating part side The connecting portion 35 of electrode 34.Dielectric film 36 is formed with less than 2.0 μm of thickness.If the thickness of dielectric film 36 is less than 0.4 μm, Layer insulation then can be made to become bad, and if the thickness of dielectric film 36 is more than 2.0 μm, then the formation of connecting portion 35 becomes tired Difficulty, thus the reason loose contact can be become.

Then, illuminating part side is explained.In figure 3, in the periphery of anode electrode 34, will separate between each pixel The mode opened forms rib 37, forms red (R), green (G), the EL layer 38 of blue (B) in this rib 37.And, in this EL layer 38 Upper formation cathode electrode 39, so that EL layer 38 is between cathode electrode 39 and anode electrode 34.As this cathode electrode 39, can To be the transparency electrode using silver-colored (Ag), aluminum (Al), magnesium (Mg), calcium (Ca) or their alloy or ITO, IGZO, IZO etc..

In addition, in cathode electrode 39, being formed in part with reflectance coating 40 corresponding with rib 37.Enter from polarization plates 32 side When being mapped to the outer light of EL display floater 1 and passing through polarization plates 32, outer light about 43% about by absorption, remaining part passes through Polarization plates 32, but the light having passed through polarization plates 32 becomes a turn cextrorotory light when by membrane phase, and by reflectance coating 40 Polarization plates 32 are again returned to after becoming left-handed light after the direction of rotation reversion Deng reflection.Now, because polarization plates 32 only make the right side Rotation light transmission and absorb left-handed light, the therefore finally basic vanishing of the reflected light of outer light.

Here, being explained to polarization plates 32 part.In figure 3, polarization plates 32 are pasted by tack coat 41 It is attached on array base palte 31.Tack coat 41 can be Thermocurable, any one in thermoplasticity, but as long as being the good material of light transmission Material is just permissible, for example as thermoplastic binding material, it is possible to use by polyethylene, polypropylene, polystyrene, ABS resin, gather Vinyl chloride resin, polymethyl methacrylate resin, nylon, fluororesin, Merlon, polyester resin, acrylic resin are constituted Binding material.Binding material as Thermocurable, it is possible to use by phenolic resin, urea resin, melamine resin, asphalt mixtures modified by epoxy resin The binding material that fat, polyurethane resin are constituted.In addition, tack coat 41 is not limited to binding material, can also be glycol, bigcatkin willow The optocoupler mixture such as sour methyl ester.

In the lower floor of polarization plates 32, form coordinate measurement labelling 42, this coordinate measurement labelling on the surface of array base palte 31 42 have light scattering or the characteristic of diffraction grating, to change the direction of incident illumination.When this coordinate measurement labelling 42 is by coating Light-scattering material and in the case of being formed, by the coating amount of light-scattering material, transmitance and scattering degree can be adjusted.Separately Outward, as light-scattering material, such as can use and spread oxidation in the light-scattering material resin material with calcium as main constituent The materials such as titanium, aluminium oxide, magnesium oxide, or can use and disperseed white face in the light-scattering materials such as opal glass or solvent Expect or disperseed glass, the material of the pearl (beads) of pottery, or using small by being formed in polymer nature Uneven texture to have the guided wave of light simultaneously and light scattering polymer light conductor of function etc. is projected in scattering.

In addition, as coordinate measurement labelling 42, can by irradiate specific wavelength light such as infrared (IR) when to a standing wave The material that long light is scattered, reflects, absorbing etc. is formed.Also it is possible to using with the addition of for colour to film pigment, Or the material for forming loading pigment that is concavo-convex or making light scattering etc. on film to be formed.In addition, loading pigment can With using from the extinction material (matting material) of spike film (tracing film) to the ink for improving ink-jet The material of the light scattering of absorbability or scattering film.Furthermore it is also possible to using such for improving the antimony-doped tin oxide of electric conductivity Metal-oxide, or using aluminium powder as the silver paste agent of binding agent.Further, as the formation side of coordinate measurement labelling 42 Method, can be the composition forming the fine concavo-convex polarization state to upset incident circularly polarized light on surface, or logical Cross patterning and after being formed by by surface oxidation or corrosion implementing the composition of rough surface, nebulousurine.In addition, also Can be by constituting that the material changing phase place is formed.Such as, can be by such as getting off to be formed coordinate measurement labelling 42, that is,： Apply optical resin in array base palte 31 and so that it is solidified, coordinate measurement labelling 42 is carried out press, roll, heat to make There is optical phase difference in it.Furthermore it is also possible to be constituted by following manner, that is,：Make and there is the film of homogeneous phase place and pasted After being attached to array base palte 31, to coordinate measurement labelling, 42 carry out pressing, roll, heat to bring it about optical phase difference.

As described above, coordinate measurement labelling 42 has light scattering, diffractive, incide the light quilt of coordinate measurement labelling 42 After coordinate measurement labelling 42 reflection, circular polarization state is disturbed, thus a part for this light passes through polarization plates 32, from there through outer Light (IR) can detect labelling 42 with detection coordinates.

As described above, in the EL display device of the present invention, by having coordinate measurement labelling 42, can make to enter from outside Be mapped to the light of panel itself and (including scattering, diffusion, diffraction, phase place change, refraction) reflected by coordinate measurement labelling 42, again by Export outside panel, thus can detect labelling 42 with detection coordinates.

Although here, example as shown in Figure 3 be from array base palte 31 side draw go out light structure example, such as Fig. 4 Shown, can also be the EL display floater using the structure going out light from illuminating part side draw.

In the panel of the example shown in Fig. 4, in upper strata or the lower floor of cathode electrode 39, formed by from chromium (Cr), aluminum (Al), the alloy metal film of titanium (Ti), the stepped construction of metal selected among copper (Cu) or multiple metal material is constituted Low resistance wiring 43.And, it is configured to, connect up 43 including this low resistance, using diaphragm seal 44 covered cathode electrode 39 Afterwards, bond the sealing plate 30 being made up of the film of glass substrate or light transmission.Polarization plates 32 are configured to be attached to sealing plate 30 Display surface side, coordinate measurement labelling 42 is formed at diaphragm seal 44 side.

In addition, in the example shown in Figure 4, in order to make the light being disturbed preferably reflect at coordinate measurement labelling 42, Reflectance coating 40 can also be formed as Fig. 3 is.

Fig. 5 and Fig. 6 is an example representing the information display device of EL display device employing in an embodiment Explanatory diagram.In this embodiment, the example of the EL display device being the use of shown in Fig. 4 of expression.In addition, in Fig. 5, figure In 6, illustrate only main composition part.

In Figure 5, it is built-in with the LED (IR-LED) as light generation unit of infrared radiation (IR) 56 in electronic pen 51 52 and the CCD53 as image acquisition unit that is taken into the image of preset range including coordinate measurement labelling 42.In addition, LED52 is not limited to infrared ray (IR), can be sent out visible ray.Alternatively, it is also possible to release ultraviolet.If IR, by Separate in the visible ray that can send with EL display floater, be therefore preferred.On the other hand, if visible ray, due to sitting Visual identity can be passed through in mark input (coordinate acquirement) position, is therefore preferred.In addition, if in the case of being visible ray, Color changeable can be made it is possible to adjust light intensity according to the hobby such as R, G, B.

Vertical synchronizing signal that LED52 shows continuously or with image, horizontal synchronous signal with pulse type to EL display floater 1 irradiates infrared ray 56.Infrared ray 56 is irradiated to through after collecting lenses 54 and substantially spherical front lens 55 EL display floater 1 (the track A of light).As collecting lenses 54, front lens 55, it is possible to use fluorite.Fluorite lightweight, and The wavelength dispersion of transmitance or refractive index is minimum, through wavelength zone field width.By using the dispersibility of this unusual part, will It is combined with common optical glass, can make the very little optical system of aberration.

By using front lens 55, the optical axis of CCD53 can be made substantially uniform with the central shaft of electronic pen 51.In addition, Front lens 55 are not limited to spherical lenss.Can also be optionally and using the part being combined with convex lenss, concavees lens etc..

On the other hand, the light (track B of light) being reflected by EL display floater 1 pass through front lens 55, collecting lenses 54 it After incide CCD53.Preferably the optical axis of CCD53 and the angle of the central shaft of electronic pen 51 are within 15 degree (DEG.).More preferably , the angle of the central shaft of the optical axis of CCD53 and electronic pen 51 is within 10 degree (DEG.).

The function of photographing unit is realized in the combination of CCD53, collecting lenses 54 etc..In addition, replacing CCD53, it is possible to use light is brilliant Other photo detectors such as body pipe or light emitting diode.In this case, between collecting lenses 54 and photo detector, setting has The liquid crystal shutter (liquid crystal shutter) of the individual grid of (6 points × 3 times) × (6 points × 3 times).

The transmission of light controlling each grid by liquid crystal shutter will be contained in the point of coordinate measurement labelling 42 with blocking Reading information a little incide successively on the sensitive surface of photo detector by each, thus realizing differentiating with sensitive surface identical Rate.

Electronic pen 51 is configured to read the information of the presumptive area in display picture.If its nib of electronic pen 51 with Display picture contacts, then read the optical information at this position.The infrared ray 56 giving off from electronic pen 51 passes through polarization plates 32, thus becoming circularly polarized smooth A.In Figure 5, circularly polarized smooth A is reflected by reflectance coating 40, and circularly polarized direction of rotation is changed into Reciprocal reflected light B.Reflected light B incides the phase retardation film (not shown) of polarization plates 32, becomes linear polarization.But, should Linearly polarized photon is due to orthogonal with the polarization axle of polarization plates 32, so being absorbed by the polarizing coating of polarization plates 32 is (not shown).Therefore, Will not project from polarization plates 32.

In figure 6, the infrared ray 56 giving off from electronic pen 51 passes through polarization plates 32, thus becoming circularly polarized smooth A.? In Fig. 6, circularly polarized smooth A is irradiated to mark detection labelling 42.Coordinate measurement labelling 42 is formed by light-scattering material.Therefore, reflect At least a portion of light B is scattered, thus circular polarization state is disturbed.Although reflected light B incides the phase contrast of polarization plates 32 Film (not shown), but the light upset by coordinate measurement labelling 42 will not become linear polarization.That is, become that there are 2 sides To polarization axle the light that is mixed of light.Therefore, the light consistent with the polarization axle of the polarizing coating of polarization plates 32 is from EL display surface Plate 1 is shot up.

The light producing with regard to the pixel 10 in EL display floater 1, only consistent with the polarization axle of polarization plates 32 light is from EL Display floater 1 is shot up.

As described above, from the infrared ray 56 that electronic pen 51 gives off, reflected by coordinate measurement labelling 42 one of light Divide and be shot up from EL display floater 1.Will not be shot up from EL display floater 1 by the light of the anode electrode 34 grade reflection of pixel 10. Therefore, the light inciding coordinate measurement labelling 42 can incide CCD53, is capable of identify that coordinate measurement labelling 42.

Fig. 7 is the schematic diagram of the basic structure representing electronic pen and tablet terminal.Fig. 5, Fig. 6 are in electronic pen 51 The structure of setting front lens 55, and it is the structure being provided with nib 61 in the figure 7.In addition, 71 are the use of display floater The information equipments such as tablet terminal.Also it is possible in nib 61 additional front-ends lens 55.

In the figure 7, electronic pen 51, in addition to LED52, CCD53, collecting lenses 54, is also equipped with nib 61, infrared ray filters Device (IR light filter) 62, pressure transducer 63, MPU (process circuit) 64, acceleration transducer 65, angular transducer 66, switch 67th, sending part 68, display LED69 etc..Tablet terminal 71 possess the display picture 72 of EL display floater 1, panel drive circuit 73, Acceptance division 74, MPU (process circuit) 75, speaker 76.

It is radiated at display picture after the infrared ray 56 that the LED52 of electronic pen 51 gives off is collecting lenses 54 by optically focused 72.The infrared ray 56 of shown picture 72 reflection in collecting lenses 54 by optically focused and after cutting off visible ray by making infrared ray The infrared filter (IR light filter) 62 of light transmission.The infrared ray 56 having passed through is radiated at CCD53.

In display picture 72, the light of the reading area of preset range is by collecting lenses 54 by optically focused CCD53's On sensitive surface, CCD53 reads the image of the coordinate measurement labelling 42 being included in reading area.Believed by the image that CCD53 reads Breath is sent to MPU (process circuit) 64.

Fig. 8 is the explanatory diagram that descriptive information reads example.As shown in figure 8, being separated by the display surface from EL display floater 1 At the position of B, pixel 10, the picture of coordinate measurement labelling 42 can be made to be imaged on CCD53.CCD53 as shown in Figure 8 is taken into Scope X that is taken into of image is：More than 50 × 50 points (50 pixel × 50 pixels), less than 200 × 200 points.If in 1 pixel Form 1 coordinate measurement labelling 42, then can be taken into more than 50 × 50, the seat of less than 200 × 200 in scope X being taken into Mark detection labelling 42.Be taken into coordinate measurement labelling 42, by the coordinate position detecting Y EL display floater 1 display picture 72 Upper with "+" etc. being shown.

The data (position data of coordinate measurement labelling 42 etc.) that electronic pen 51 reads is sent to MPU (process circuit) 64.MPU (process circuit) 64 identification is included in the dot image in coordinate measurement labelling 42, and the data of the dot image recognizing is entered Row is processed, the coordinate of the position indicated by detection electronic pen 51.

The information reading image is transformed to after data signal be sent to sending part 68 by MPU (process circuit) 64.Sending part 68 acceptance divisions 74 by radio communication, coordinate data being sent to tablet terminal 71.

The receipt signal data that the acceptance division 74 of tablet terminal 71 receives is processed in MPU (process circuit) 75, is based on The contact condition of the panel of electronic pen 51 is making speaker 76 sounding.In addition, control panel drive circuit 73.Panel driving electricity The coordinate position that electronic pen 51 identifies is shown in display picture 72 on road 73.

A series of above read action are to carry out when contacting with display picture 72 in the front end of electronic pen 51.That is, if Put the pressure transducer 63 in the binding part of collecting lenses 54 and would indicate that collecting lenses 54 touch the signal of display picture 72 and send out Deliver to MPU (process circuit) 64.Arrival to this signal responds, and MPU (process circuit) 64 is defeated to process the reading of CCD53 The mode going out carries out action.

In addition it is not limited to be read out the structure of action with display picture 72 when the front end of electronic pen 51 is contacted, than As can also be following structure, that is,：It is provided for the switch that instruction is read in user input, the situation that this switch is pressed Responded, even electronic pen 51 can also be read out action in the case of have left display picture 72.

On the other hand, as the means that the output signal of electronic pen 51 is sent to MPU (process circuit) 64, do not limit to In holding wire 46, for example, can also be configured to make sending signal be possibly realized by infrared communication etc., using electronic pen 51 as Wireless indicatory device is using.

Nib 61 is contacted with pressure transducer 63.If nib 61 is contacted with EL display floater 1, to pressure transducer 63 Apply pressure, thus the information that nib 61 touches display floater is communicated to MPU (process circuit) 64.

Angular transducer 66 detects the angle of electronic pen 51.This is because, according to the gradient of electronic pen 51, the seat of nib Cursor position will be different.In the case that electronic pen 51 is vertical, coordinate is present in the underface of electronic pen 51.If electronic pen 51 Tilt greatly, then the coordinate of nib can become the position more away from the underface of electronic pen 51.

Angular transducer 66 measures the gradient of electronic pen 51, and the inclination data of electronic pen 51 is sent to MPU (process circuit) 64.MPU (process circuit) 64 revises, according to the inclination data of angular transducer 66, the seat being obtained by CCD53 The position of mark detection labelling 42, thus try to achieve the position of user record.Particularly in the optical axis deviation electronic pen 51 of CCD53 Central shaft in the case of, need the correction carrying out based on this inclination data.

The angle of the central shaft of the optical axis of CCD53 and electronic pen 51 is preferably within 15 degree (DEG.).It is further preferred that The angle of the central shaft of the optical axis of CCD53 and electronic pen 51 is within 10 degree (DEG.).Gradient using angular transducer 66 What data was carried out is entered based on the angle being based between the optical axis of CCD53 and the central shaft of electronic pen 51 of repairing of inclination data The correction of row.Bending mirror (not shown) can also be configured in the light path of CCD53, aspherical mirror (not shown), lens (are not schemed Show) at least one of more than so that the optical axis of CCD53 is substantially uniform with the central shaft of pen.

Acceleration transducer 65 detects the translational speed (inclusion acceleration) of electronic pen 51, and also detects moving direction. By acceleration transducer 65 and by electronic pen 51, word, mark, the shape of picture, the vector direction of line, length can be obtained Degree.The moving direction of electronic pen 51, acceleration information are sent to MPU (process circuit) by acceleration transducer 65, and MPU (is processed Circuit) 64 the amount of movement of electronic pen 51, moving direction etc. are asked for according to moving direction data, acceleration information.

Fig. 9 is the explanatory diagram of the input based on electronic pen.Fig. 9 (a) is the aerial input (hanging input) based on electronic pen Explanatory diagram, Fig. 9 (b) be based on electronic pen contact input explanatory diagram.

As shown in Fig. 9 (b), contacted with EL display floater 1 by nib 61, apply pressure to pressure transducer 63, thus Carry out the input of word, line etc..

In addition, as shown in Fig. 9 (a), when inputting in the air, nib 61 is not contacted with EL display floater 1 grade.Implementing in the air In the case of input, by compressing switch 67.

Additionally, nib is contacted with EL display floater 1, thus showing that LED69 is lit when switch 67 is pressed.In addition, When power supply is applied to electronic pen 51, display LED69 lights within a certain period of time.It is pressed by switching 67, can obtain and pen Point 61 contact EL display floater 1 identical effect.

The depth of focus B of collecting lenses 54 on the light entrance face of CCD53 for the configuration is longer.Preferably F code is set in more than 8 and 20 Below.Within depth of focus B is set in 20mm.Therefore, the scope of the depth of focus B shown in Fig. 8, can make coordinate measurement labelling 42 become Picture.

If by compressing switch 67, reading the image of the coordinate measurement labelling 42 being taken in scope X, according to coordinate measurement mark The forming position of note 42, asks for, using MPU (process circuit) 64 etc., the position that electronic pen 51 to be carried out, and by the detection tried to achieve The coordinate position Y going out is shown in display picture 72.

With the distance away from display picture 72 for the electronic pen 51 independently, read in real time in the range of B and be taken in scope X The image of coordinate measurement labelling 42.According to the forming position of coordinate measurement labelling 42, ask for electricity using MPU (process circuit) 64 The position that sub- pen 51 to be carried out.Display picture 72 commercial "+" etc. mark show the coordinate position Y detecting being tried to achieve.Cause This, even aerial input is it is also possible to identification carries out the position of coordinate input etc..If input position with "+" etc. mark consistent Or fall into preset range, then by compressing switch 67, terminate input.

In order to more effectively utilize the Quick Response Code of coordinate measurement labelling 42 grade, there is following suggestion, that is,：Read together with Quick Response Code Take other image informations, and the technology that will be processed in the processing meanss such as the information input being read to computer.Known have Following technology, that is,：The two-dimensional code symbol being possible to read optically is arranged in rectangular, in use in display picture 72 While display picture 72 write by electronic pen 51, read two-dimensional code symbol using photographing unit and obtain coordinate information.Preferably will These items are also adopted by the present invention.

Tablet terminal 71 as the information display device shown in Fig. 7 has memorizer, MPU (process circuit) 75, passes through By the various information of the above-mentioned handwriting input being accepted by information input means like that and the identification being identified by electronic pen 51 Information by MPU (process circuit) 75, they is stored in memorizer after setting up corresponding relation.Here, as memorizer such as Jumbo flash memory or hard disk etc. can be used.

Further, since the information display device main assumption of present embodiment uses the feelings of arbitrary site with hand-held Condition, therefore preferably use as body power source be built in body interior can be recharged 2 primary cells.In view of such master The power consumption of body power supply, electronic pen 51 is set to the work when body power source starts.Such a function is at MPU (place Reason circuit) 75 control under executed by power activation means.

Image pickup device by image pickup elements such as collecting lenses 54, CCD53 or CMOS (not shown) and controls image The controller composition of imaging apparatuss.Shoot and be taken into the image of scope X to export black and white 8 dot image.The pixel count of CCD53 needs The quantity of QVGA or CIF degree.

MPU (process circuit) 64 carries out the adjustment imaging timing, shutter speed, gain etc. of CCD53, thus, it is possible to shoot To the exposure image not having white macula (white とび) or stain (れ).An inspection is imported into by the image that CCD53 shoots Survey device, the point in detection image, and export and point is set to black pixel and the part beyond point is set to the dot image of white pixel. Dot image is input to encoder block detector, the frame of detection Quick Response Code.The coordinate of the frame that the output of encoder block detector detects (is compiled Code position information) and dot image.Encoded location information and dot image are input to data and obtain device.Data obtains device according to coding The presence or absence of point of inframe, obtains " 1 ", the coded data of " 0 ", and by data arrangement.Mistake is corrected device and is corrected acquired number According to mistake.It is not have mistake or can carry out in the case that mistake corrects carrying out the result corrected of mistake, by mistake Correct and judge information output as "available", and export revised data.In the case of can not correcting mistake, mistake is corrected Judge information output as " can not ", and export the data that can not correct.Data decoder is according to revised data come to seat Mark information enters row decoding.

Figure 10 is the explanatory diagram of the control method of LED and CCD.MPU (process circuit) 64 output makes CCD53 be switched The control signal of action and the control signal of the LED52 synchronous with signal.Based on control signal, control the drive circuit of CCD53 53a, and control the IR-LED drive circuit of LED52.

CCD drive circuit 53a, LED drive circuit 52a are based on control signal and control CCD53, LED52.Enter in CCD53 Row image is taken into the period of (exposure), so that LED52 is lighted.When CCD53 does not carry out image and is taken into (exposure), make LED52 extinguishes.At least LED52 is made to light when CCD53 is taken into image.

In addition, the embodiment of the electronic pen 51 shown in Fig. 7 is the structure possessing LED52 in the framework of electronic pen 51.But It is, if all configured LED52 and CCD53 in the framework of electronic pen 51, to be difficult to make the optical axis of CCD53 and electronic pen 51 Central shaft is consistent.Further, since be all accommodated in LED52 and CCD53 the size of electronic pen 51 therefore can be made in electronic pen 51 to become Greatly.

The embodiment of Figure 11 be only receive CCD53 in electronic pen 51 and by LED52 configuration the knot in EL display floater 1 side Structure.81 containment vessels being equipped with LED52, are configured in the display surface side of EL display floater 1.Due to only CCD53 configuration being existed In the framework of electronic pen 51, thus easily make CCD53 optical axis consistent with the central shaft of electronic pen 51.As long as further, since will CCD53 configures in electronic pen 51, and the size of therefore electronic pen 51 diminishes, and can design the penholder of electronic pen 51 Obtain thinner.

In fig. 11, the infrared ray 56 giving off from LED52 is transmitted to EL display floater 1 by containment vessel 81 grade The whole region of display picture 72.The infrared ray 56 propagated is through inciding reflectance coating 40, coordinate measurement labelling after polarization plates 32 42 etc..

The infrared ray 56 inciding mark detection labelling 42 scatters, and is again passed through polarization plates 32, incides electronic pen 51 CCD53.LED52 and CCD53 obtains synchronization by the circuit mode of Figure 10.

Figure 12 is the explanatory diagram of the state lighting control representing the installment state of the substrate to LED etc. and LED.Substrate phase When in containment vessel 81, sealing plate 30, array base palte 31 etc..However, it is not limited to these.As long as propagating from LED52 radiation Substrate of infrared ray 56 going out etc., any substrate can.

In fig. 12, LED52 is installed in the both sides of at least substrate.Or it is configured in the both sides of at least substrate.Separately Outward, LED52 can also be installed in four sides of substrate.In Figure 12 etc., dark circles represent non-lit up LED52, white circular table Show the LED52 being lit.

Alternately (b) of (a) of Figure 12 and Figure 12 repeatedly.Can also control LED52's according to the position of electronic pen 51 Light.

(a1) of Figure 13～(a4) is the turned-on position on the above-below direction or left and right directions of display picture to LED52 The embodiment being scanned.By scanning, the electric power that LED52 is used can be reduced.The position being preferably based on electronic pen 51 is come Change scanning direction, scanning speed.

(b1) of Figure 13～(b4) be change LED52 according to test position Y that detected by electronic pen 51 light position The mode put.Detection or the position of prediction electronic pen 51, and make and detect or the position that predicts and it is right nearby The LED52 answering lights.According to the pen tip position of electronic pen 51, change LED52 to be lighted.Controlled by as above, energy Enough reduce the power consumption of LED52, and also coordinate measurement precision can be improved.

In example shown in Figure 14, LED52 is installed in sealing plate 30.The infrared ray 56 giving off from LED52, passes through Sealing plate 30 and be transmitted to the whole region of the display picture 72 of EL display floater 1.Because sealing plate 30 is configured in than inclined Vibration plate 32, closer to the side of display layer, is therefore configured in the situation phase outside polarization plates 32 with LED52 as shown in Figure 11 Will not beam attenuation because of polarization plates 32 in ratio.Therefore, the service efficiency of the infrared ray 56 of LED52 is good.

The infrared ray 56 propagated is propagated in sealing plate 30 grade, but also incides reflectance coating 40, coordinate measurement labelling 42 Deng, a part reflect.

There is scattering or reflect in the infrared ray 56 inciding coordinate measurement labelling 42, be again passed through polarization plates 32, incident CCD53 to electronic pen 51.LED52 and CCD53 obtains synchronization by circuit mode of Figure 10 etc..In addition, type of drive with Figure 12, Figure 13 are identical.

Example shown in Figure 15 is in LED52 is arranged on the embodiment of the structure in containment vessel 81, to containment vessel 81 Surface implement matsurface process 81a structure.Matsurface process 81a be by the surface of containment vessel 81 is carried out machinery plus Work, chemical process are forming concavo-convex composition.Process 81a by carrying out matsurface, nib 61 or front lens 55 contact are aobvious Show the matsurface processing 81a of panel, thus producing the abrasive feel of appropriateness.If not being processed as matsurface processing 81a, nib 61 meeting Skid, " writing sense " can be reduced.In addition, matsurface processing 81a is not limited to containment vessel 81, sealing plate 30, array base palte 31 directly process or process.Such as, can be to attach to described substrate etc. by being formed with matsurface or concavo-convex substrate, film etc. Structure.

In example shown in Figure 16, LED52 is installed to array base palte 31.Infrared ray 56 quilt giving off from LED52 The reflection such as array base palte 31, reflectance coating 31a or scattering, propagate in the whole region of the display picture 72 of EL display floater 1. Because array base palte 31 etc. is configured in the side than polarization plates 32 layer more on the lower, therefore it is configured with LED52 as Figure 11 Situation in the outside of polarization plates 32 is compared, and because of polarization plates 32, beam attenuation will not occur.Therefore, the infrared ray 56 of LED52 Service efficiency good.Reflectance coating 31a can also be the photodiffusion material making light scattering.

In figure 16, the infrared ray 56 of propagation, by the through hole 34a (non-reflecting regions) being formed on anode electrode 34, passes It is multicast to sealing plate 30 side etc..In addition, infrared ray 56 by mark detection labelling 42 grade scattering or reflects, it is again passed through polarization plates 32, Incide the CCD53 of electronic pen 51.Type of drive is identical with above-mentioned example.

As shown in Figure 14, Figure 15, Figure 16, configure substrate or the propagation propagating LED52 in the more lower side of polarization plates 32 Or in the case of irradiation LED 52, certain coordinate measurement labelling 42 needs not be light-scattering material etc. and upsets circular polarization, polarization state Structure.Such as, coordinate measurement labelling 42 can be light reflection structure.This is because, because natural light is irradiated to seat from LED52 Mark detection labelling 42, the LED52 therefore inciding mark detection labelling 42 can pass through polarization plates 32.

Figure 17～Figure 26 is the figure of the configuration example that denotation coordination detects labelling.

In Figure 17 (a), coordinate measurement labelling 42 is formed point-like.In addition, it is overlappingly or a part of with rib 37 Overlappingly configure.And it is configured to：Carry out image by CCD53 etc. to coordinate measurement labelling 42 to be taken into, based on mathematical way Or coding theory etc., can determine that the forming position of coordinate measurement labelling 42 is located at where display picture 72.

In Figure 17 (b), coordinate measurement labelling 42 is formed rectangle or ellipticity.In addition, with rib 37, as picture The anode electrode of plain electrode is overlappingly or a part overlappingly configures.It is configured to：By CCD53 etc. to coordinate measurement mark Note 42 carries out image and is taken into such that it is able to determine the forming position of coordinate measurement labelling 42 where display picture 72.Logical Cross and form coordinate measurement labelling 42 in rib 37, pixel electrode will not be by coordinate measurement labelling 42 shading, such that it is able to realize height Brightness shows.

In figure 18, coordinate measurement labelling 42 is formed at intersection point or the near intersections of pixel.Substantially with 1 pixel 10 Or to form 1 coordinate measurement labelling 42 with the pixel of RGB for 1 group.

Figure 19 is the embodiment that 1 relatively pixel forms multiple coordinate measurement labellings 42.According to coordinate measurement labelling 42 Denotation coordination position is come in number, interval, position.

In fig. 20, it is configured with variform multiple coordinate measurement labelling 42.As shape, exemplified with circle, rectangle, ellipse Round shape.In addition, with rib 37, pixel electrode, overlappingly or a part is overlappingly configured.It is configured to：By CCD53 It is taken into Deng image is carried out to coordinate measurement labelling 42, can determine that the forming position of coordinate measurement labelling 42 is located at display picture 72 Where.

Figure 21 is the embodiment being formed with multiple coordinate measurement labellings 42 in 1 pixel electrode.According to coordinate measurement mark Denotation coordination position is come in the number of note 42, interval, position.

Figure 22 is the embodiment being formed with coordinate measurement labelling 42 in one part of pixel electrode.Red pixel 10R, Form coordinate measurement labelling 42 in the blue pixel of pixel 10B, green pixel 10G does not form coordinate measurement labelling 42.

Figure 23 is the embodiment forming coordinate measurement labelling 42 in blue pixel 10B.Picture in blue pixel 10B Form coordinate measurement labelling 42 in element, and do not form coordinate measurement labelling 42 in red pixel 10R, pixel 10G of green.

Figure 24, Figure 25 are to add the embodiment defining alignment mark 42a in the embodiment of Figure 22.In addition, para-position Labelling 42a can certainly use as coordinate measurement labelling 42.Alignment mark 42a is read by electronic pen 51, detects EL The substantially coordinate position of display floater 1.Preferably make the shape of coordinate measurement labelling 42 and the shape of alignment mark 42a, position not With.

Figure 26 is the variation of alignment mark 42a.Figure 26 (a) is to define 2 alignment mark 42a in 1 pixel Embodiment.Figure 26 (b) is the embodiment being used as alignment mark 42a by combining multiple coordinate measurement labelling 42b.Figure 26 (c) It is the embodiment of the aggregation defining coordinate measurement labelling 42c in alignment mark 42a.As an example, with braille literary composition Word constitutes alignment mark 42a.

Figure 27 is that the signal of the other examples of EL display floater in the information display device represent an embodiment is cutd open View.

In the case of EL display floater 1 being inputted by electronic pen 51, there is parallax.Parallax be due to Polarization plates 32 grade is configured with the viewing area of EL display floater 1 and produces.Although the nib of electronic pen 51 is located at polarization On plate 32, but because image is shown in the illuminating part of EL display floater 1, therefore can produce the parallax of nib and display image.

Therefore, composition is as follows, that is, in the present embodiment：In EL display floater 1, with tack coat 41, fibre board 82 is bondd To cathode electrode 39, and fibre board 82 is configured between polarization plates 32 and coordinate measurement labelling 42 to mitigate parallax.Fibre board 82 is to be had multiple fiber 82a of the bore less than pixel 10 and constituted by arrangement.And it is configured to：In fiber 82a Surrounding formation reflectance coating 82b, and by make reflectance coating 82b refractive index be different from fiber 82a so that inciding fiber The display light 83 of 82a is propagated after being reflected, and thus projects from EL display floater 1.

In information display device in an embodiment as above, possessing the pixel 10 being made up of EL element 12 It is configured in the EL display floater 1 of rectangular viewing area 2, configuration makes incident illumination produce the polarization plates 32 of polarization, and Possess the characteristic, such as by light scattering part or diffraction grating change institute of the direction making EL display floater 1 change incident illumination State the coordinate measurement labelling 42 of the polarization state of polarization plates generation.Thus, possess light generation unit and image acquirement if used The electronic pen 51 of unit, then can have been passed through light or the reflection of coordinate measurement labelling 42 by the detection of the image acquisition unit such as CCD53 Light, it is possible to easily determine coordinate position, wherein, light generation unit be radiation for detection coordinates detect labelling infrared ray LED52 Deng light etc., image acquisition unit is CCD53 of the image being taken into the preset range including coordinate measurement labelling 42 etc..

In addition, according to an embodiment, can easily realize in EL display device.Thus, it is possible to extensively apply be Video camera, digital camera, goggle type display (goggle display), navigation system, audio player, computer, trip Gaming machine, portable data assistance, possess image-reproducing apparatus of recording medium etc. recording medium is carried out regeneration to show its figure The display devices such as the equipment of picture.

Industrial applicability

The present invention as above is useful EL display device is come application aspect as information display device.

Symbol description

1 EL display floater

2 viewing areas

10 pixels

The red pixel of 10R

The blue pixel of 10B

The pixel of 10G green

11,11a, 11b, 11c, 11d, 11e, 11f transistor

12 EL elements

13a, 13b, 13c, 13d, 13e capacitor

15,16 gate drivers IC

17,17a, 17b, 17c, 17d, 17e gate line

18 source signal line

30 sealing plates

31 array base paltes

32 polarization plates

34 anode electrodes

38 EL layers

39 cathode electrodes

42 coordinate measurement labellings

42b coordinate measurement labelling

42c coordinate measurement labelling

51 electronic pens

52 LED

53 CCD

81 containment vessels

82 fibre boardes

Claims

1. a kind of information display device, it has display floater, and this display floater possesses：It is configured to based on the pixel of EL element Rectangular viewing area；The source signal line of signal of video signal is provided to described pixel；Control the luminous of described pixel with providing Selection/unselected signal gate line, wherein,

Described display floater has the polarization plates making incident illumination produce polarization, and described display floater possesses coordinate measurement mark Note, this coordinate measurement labelling has the characteristic in the direction changing incident illumination,

Form multiple described coordinate measurement labellings being separated from each other in described pixel,

Described pixel is the region of the light transmission making described EL element send.

2. information display device according to claim 1, wherein,

Described information display device is also equipped with detecting the electronic pen of the coordinate measurement labelling of described display floater, described electronic pen tool Standby：Radiate the light generation unit of the light for detecting described coordinate measurement labelling；Be taken into including described coordinate measurement labelling The image acquisition unit of the image of preset range.

3. information display device according to claim 1, wherein,

Described display floater also has sealing plate and array base palte, is formed in described sealing plate surface or described array base palte surface Described coordinate measurement labelling.

4. information display device according to claim 1, wherein,

In described display floater, between described polarization plates and described coordinate measurement labelling, it is configured with fibre board.